UA 97 then UA 3906 at San Francisco
Brisbane → San Francisco → Chicago O'Hare
Timetable, San Francisco time
06:30UA 97 from Brisbane at the gatealso AV 2054, LX 3089, VA 8507, LH 8947
19:30UA 3906 to Chicago O'Hare leaves the gate
13 h apart on the timetable
UA 3906 leaves 13 h after UA 97 arrives on the timetable: more than half a day, so not a connection we count.